Luna AMT   Shelf speaker as in K+T 5/2017

Technical data
  • impedance: 4 Ohm
  • sensivity (2,83V/1m): 86 dB
  • size (HxWxD): 330 x 198 x 260 mm
  • frequency range (-8dB): 50 - 26000 Hz
  • crossover frequency(s): Hz
  • speaker type: bass reflex

Luna AMT is a two way compact speaker.

Luna AMT is a bass-reflex cabinet loudspeaker with drivers of Omnes Audio .

The kit is delivered with the following drivers:
- a Omnes Audio AMT 60.1 tweeter
- a Omnes Audio MW6G midrange / bass driver

The loudspeaker has been developed by Thorsten Fischer.

The crossover consists of:
- a 2nd order high-pass filter (12 dB per octave slope) for the tweeter.
- a 2nd order low-pass filter (12 dB per octave slope) for the woofer.

The frequency response of this speaker is nearly linear. At low volume, i.e. 85 dB at 1 m, the nonlinear distortions are below 0.6% above 300 Hz and doesn't exceed 1% at 95 dB at 1 m between 300 and 15000 Hz.

Our kit consists of

  • Omnes Audio MW 6G
  • Omnes Audio AMT 60.1 (round)
  • Bass reflex tube HP50, 50x145 mm, black
  • Damping Sonofil 100 x 35 cm for 20 litres
  • Terminal T105 Au, with brass, gold plated
  • 1,5m Speaker cable 2x1.5 mm2, transparent
  • 1,5x Pan screws 3.5x17 black, cross recess, 8 pieces
  • 0,5x Pan screws 4x20 black, cross recess, 8 pieces
  • Plan for DIY kit

the crossover components (right),
to be mounted on a small wooden board.

  • Audaphon MKP CAP Superior 10 uF / 400 Vdc
  • Audaphon MKT CAP 22 uF / 160 Vdc
  • 1.3 mm air core coil, 0.82 mH/0.275 Ohm
  • 0.7 mm air core coil, 0.56 mH/0.55 Ohm
  • Metal-oxide resistor, 10W 2.7 Ohm (red-purple-gold)
  • Metal-oxide resistor, 10W 4.7 Ohm (yellow-violet-gold)

Kit without cabinet, price per speaker   EUR 179,00 excl. VAT: € 150.42 / $ 169.97

Kit with high-end crossover

The high-end kit is delivered with baked varnish air core coils for minimizing microphonic effects. - The current flow through the coil creates a magnetic field which sets the reel of wire in motion. This motion induces a voltage in the coil which adds itself to the signal. The stiffer the reel of wire is, the less the signal will be altered. The capacitors for the fullrange driver are of type polypropylen (MKP). This is Clarity-Cap PWA 160 and Audaphon MKP 400Vdc.

Kit with high-end-crossover without cabinet, price per speaker   EUR 222,00 excl. VAT: € 186.55 / $ 210.81

Impedance correction

If you want to use a valve amplifier with this speaker an impedance correction should be employed. In this case the component quality is less important; therefore, we offer only one kit (upon request higher quality components are available).


Price per impedance correction for one speaker, to be mounted on a small wooden board.     EUR 12,45 excl. VAT: € 10.46 / $ 11.82

universal PCB

If you prefer to mount the crossover components on a universal PCB instead on wood
PCB 150x115 mm, tin plated, price per unit:   EUR 4,70 excl. VAT: € 3.95 / $ 4.46
We recommend one board per kit (2 boards per speaker pair)


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